retrauk, let KarminClock explain. This song by WoodenToaster is about rainbow dash making rainbows out of pegasi blood. She gets her victims if they fail the flying race. So when scootaloo (rainbow dash's big fan) she is taken to the rainbow factory to be a stripe of orange.
Now do you understand? ok bai :P
Why do I get a feeling this is Brony related? It still sounded decent though.